Wall form support



June 30, 1942. R on-1s 2,288,365

WALL FORM SUPPORT Filed July 12, 1940 v INVENTOR. yzzzmzc/ZWZJ/ X! Patented June 30, 1942 UNITED STATES PATENT OFFICE 1 Ciaim.

This invention relates to concrete construction or the like, and more particularly to concrete wall forms.

In constructing concrete walls it has been customary to tie the two sides of the Wall together with either rods or wires in order to prevent the pressure of the wet concrete from bulging the walls. In such construction it is necessary either to pull out the rods and refill the holes or to clip off the wires. In either case considerable work is entailed in finishing the wall, and the finished wall is more or less susceptible to seepage of water.

One object of the invention is to eliminate tie wires or rods through concrete walls.

Another object is to form a concrete Wall which will be more nearly waterproof.

A further object is to reduce the cost of concrete walls.

A further object of the invention is to simplify the construction of concrete Walls and partitions.

A further object is to decrease the time required to set concrete forms.

A further object is to provide a form support that will be strong and rigid.

Other objects will become apparent from the following description.

The single drawing is a cross-section through a wall of uniform thickness showing the improved form-support in place thereon.

Referring to the drawing, th foundation I is poured and allowed to harden with a substantially U-shaped truss-support embedded therein. The support may comprise a pair of vertical legs 52-!2, connected together at their lower ends by a horizontal spacer bar l3. Fish plates Ill-l4 may be integrally formed between the legs l2-l 2 and the bar 13 to stiffen the truss-support and prevent cracking of the foundation ID. The legs i2-l2 are of such diameter as to fit within the tubular ends I5l 5 of two trusses, generally des ignated 16-16, while the bar l3 may be a continuation of the material of the leg and be of sufiicient length to give the desired spacing to the trusses and the resultant wall.

As shown on the drawing, the trusses [6-46 may be expansible and of the type covered by applicants United States Patent No. 2,177,043,

issued October 24, 1939, and applicants co-pend- The upper ends of the trusses are held together by a truss-support which may comprise a pair of substantially vertical pins 20-20 which are receivable within the upper tubular ends 2| of the trusses I 5I5, and an adjustable spacer bar. The spacer bar comprises tubular end pieces 2222 each of which has one of the pins 20 joined to the outer end thereof.

The interiors of the tubular end pieces 22-22 are threaded to receive a threaded bar 24 in such a manner that rotation of the bar 24 in one di rection decreases the spacing of the pins 29-20 while rotation of the bar in the opposite direction increases the spacing of the 'pins. A nut 25 is formed integrally on the bar 24 to enable it to be turned readily.

The wall forms 39-450 may thus b built on 2 X 4s, 3 l--3 I, which are connected to the trusses l5 by nailing through brackets 32 on the trusses.

By adjusting the truss-supports properly a wall may be built either of uniform thickness or of uniformly varying thicknesses. The elimination of tie rods or tie wires not only lessens the work of finishing the wall, and gives a substantially waterproof structure, but permits the use of large sections of plywood in the construction of the forms, thus effecting further savings.

, Having thus described the invention it will be realized that it is susceptible to various changes and modifications and that the type of trusses and corresponding truss-supports used may be varied to suit particular conditions, and it is not therefore, desired to limit the invention to the precise form herein shown and described, but only by the scope of the appended claim.

The invention hereinbefore described is claimed as follows:

In a form support for use with a concrete construction having a base, a U-shaped member adapted to be embedded in said base with the ends thereof projecting out of the base and extending parallel to the sides of the form, a pair of trusses, each truss including a tubular chord, one end of each of said tubular chords being engaged over an end of the U-shaped member to support that end of each truss, and a second U-shaped member having parallel pins engaged in the opposite ends of said tubular chords to support that end of each truss.

RAYMOND J. MOTHS. 

